Samsung DDR5 48GB RDIMM ECC Registered Server Memory Module M321R6GA0PB2-CCP

Brand: Samsung | Category: Memory (RAM)

SKU: M321R6GA0PB2-CCP | Part #: M321R6GA0PB2-CCP

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Product Overview

The Samsung DDR5 48GB RDIMM (Registered Dual Inline Memory Module) represents a significant leap forward in enterprise server memory technology. As organisations worldwide accelerate digital transformation initiatives, the demand for higher-density, lower-latency, and more power-efficient memory has never been greater. Samsung, the world's leading DRAM manufacturer, responds to this challenge with the M321R6GA0PB2-CCP — a 48GB DDR5 RDIMM engineered specifically for next-generation server and workstation platforms operating in data centres, cloud environments, and high-performance computing (HPC) clusters across the GCC, MENA region, and globally.

DDR5 technology introduces architectural improvements over DDR4 that go far beyond a simple generational speed bump. With doubled channel density per DIMM, improved on-die ECC, higher data transfer rates, and significantly reduced voltage requirements, DDR5 RDIMMs like this Samsung module are purpose-built to support the memory-intensive workloads that define modern enterprise IT — from large-scale virtualisation to real-time AI inference and data analytics. The 48GB capacity strikes a strategic balance between density and slot efficiency, enabling administrators to maximise total system memory without exhausting all available DIMM slots.

Whether you are refreshing your server infrastructure, deploying new AI/ML training nodes, or scaling out your virtualised environments, the Samsung M321R6GA0PB2-CCP delivers the performance, stability, and longevity that enterprise-grade deployments demand.

Key Features & Benefits

• High-Density 48GB Capacity: Offers a non-standard, high-density 48GB per module, enabling configurations that maximise memory per socket without consuming all DIMM slots — ideal for memory-intensive workloads and future scalability.
• DDR5 Architecture: Operates on the latest DDR5 standard, delivering dramatically improved bandwidth, efficiency, and reliability compared to DDR4, with native support for on-die ECC (ODECC) for superior data integrity at the chip level.
• Registered (RDIMM) Design: The registered buffer between the DRAM chips and the memory controller reduces electrical load on the CPU, enabling more DIMMs per channel and improving stability in multi-DIMM configurations — essential for enterprise server platforms.
• ECC Error Correction: Full ECC (Error-Correcting Code) support detects and corrects single-bit memory errors in real time, ensuring continuous uptime and data integrity for mission-critical applications and financial or healthcare workloads.
• Lower Power Consumption: DDR5 operates at 1.1V (compared to DDR4's 1.2V), reducing overall power draw across densely populated memory configurations — a meaningful cost and thermal advantage in large-scale data centre deployments.
• Samsung Semiconductor Quality: Manufactured by Samsung, the global leader in DRAM production, ensuring consistent binning quality, rigorous testing, and long-term supply reliability that enterprise IT procurement teams depend on.
• Optimised for Modern CPUs: Fully compatible with Intel Xeon Scalable (Sapphire Rapids and beyond) and AMD EPYC (Genoa series and beyond) processors that natively support DDR5 memory channels, unlocking the full platform-level memory bandwidth available in next-gen servers.
• CCP Speed Grade: The CCP suffix designates the specific speed and timing configuration of this module, optimised for validated enterprise server platforms to ensure compatibility and stability in production environments.

Technical Architecture

At its core, the Samsung M321R6GA0PB2-CCP is built around Samsung's advanced DDR5 DRAM dies, assembled in a RDIMM form factor with a registered clock driver (RCD) chip on the module. This RCD acts as a buffer for command and address signals, isolating the CPU's memory controller from the electrical load of multiple DRAM chips. This buffering is what distinguishes RDIMMs from unbuffered DIMMs (UDIMMs) and is the reason RDIMMs are the standard choice for enterprise servers that support multiple DIMMs per channel.

DDR5 introduces a fundamental architectural change by splitting each DIMM's single 72-bit channel (data + ECC) into two independent 40-bit sub-channels. This dual sub-channel design doubles the effective command/address bandwidth per module and allows for more granular memory access, improving efficiency for applications with diverse and unpredictable memory access patterns — such as database engines, hypervisors, and machine learning frameworks.

On-die ECC (ODECC), a DDR5 standard feature, operates within each DRAM chip independently of the system-level ECC. This means that even before data reaches the memory controller, internal chip-level errors are detected and corrected, providing an additional layer of data protection that complements the module-level and system-level ECC implemented by the server platform.

The module uses a 288-pin DDR5 DIMM connector, physically distinct from DDR4 connectors to prevent accidental cross-generation installation. PCB routing is optimised for signal integrity at high data rates, and the module is designed to operate within the JEDEC DDR5 specification to ensure interoperability across certified server platforms.

Performance & Capacity

The Samsung M321R6GA0PB2-CCP delivers substantial performance improvements over its DDR4 predecessors. DDR5 memory operates at significantly higher data transfer rates, with DDR5-4800 being the baseline JEDEC specification — representing 4800 MT/s (megatransfers per second) per module. Depending on the server platform and BIOS configuration, supported speeds may extend beyond this baseline.

In practice, a fully populated dual-socket server using DDR5 RDIMMs can achieve aggregate memory bandwidth exceeding 300 GB/s per CPU socket, compared to approximately 200 GB/s achievable with DDR4 on comparable platforms. For AI inference, in-memory database, and large language model (LLM) serving workloads, this additional bandwidth directly translates to faster query response times, higher throughput per node, and reduced need for expensive scale-out.

The 48GB capacity per DIMM allows server configurations that reach 1.5TB or more of total system memory in platforms supporting 32 DIMM slots — sufficient for in-memory SAP HANA instances, large PostgreSQL or Oracle databases, and extensive VM density configurations. For HPC users running molecular dynamics or finite element analysis simulations, the combination of capacity and bandwidth makes this module a compelling choice.

Compatibility & Integration

The Samsung M321R6GA0PB2-CCP is compatible with server platforms and workstations that support DDR5 RDIMM memory. Key compatibility considerations include:

• Intel Xeon Scalable (4th Gen, Sapphire Rapids) and later: Native DDR5 support with up to 8 DIMM slots per CPU on dual-channel or quad-channel configurations depending on platform.
• AMD EPYC (4th Gen, Genoa and Bergamo) and later: DDR5 with up to 12 DIMM slots per CPU socket, enabling exceptional memory density per server node.
• Server Platforms: Compatible with major OEM server lines including Dell PowerEdge (16th Gen), HPE ProLiant Gen11, Lenovo ThinkSystem V3, Supermicro X13 series, and other DDR5-validated platforms.
• JEDEC DDR5 Standards: Fully compliant with JEDEC DDR5 SDRAM specifications (JESD79-5), ensuring broad interoperability.
• Operating System Support: Compatible with all major enterprise operating systems including Red Hat Enterprise Linux, SUSE Linux Enterprise, VMware ESXi, Windows Server 2022, and Ubuntu Server LTS — the memory operates transparently at the OS level.
• RAS Features: Supports advanced RAS (Reliability, Availability, Serviceability) features when enabled by the platform, including memory mirroring, memory sparing, and patrol scrubbing for maximum uptime in critical deployments.

Ideal Use Cases

• AI & Machine Learning Training Nodes: Large language models, deep neural network training, and AI inference pipelines benefit enormously from high-bandwidth DDR5 memory when feeding GPU or CPU-based accelerators, reducing data starvation bottlenecks.
• High-Density Server Virtualisation: VMware vSphere, Microsoft Hyper-V, and KVM environments hosting hundreds of VMs per server node require maximum memory density and reliability — exactly what 48GB DDR5 RDIMMs deliver per slot.
• In-Memory Databases & Analytics: SAP HANA, Redis, VoltDB, and MemSQL instances running entirely in RAM achieve sub-millisecond query latency when backed by large pools of high-bandwidth DDR5 memory.
• OLAP & Business Intelligence: Data warehouse appliances and BI platforms processing terabytes of structured data benefit from the increased memory bandwidth to accelerate complex aggregation and join operations.
• HPC & Scientific Computing: Computational fluid dynamics, genomics research, climate modelling, and finite element simulations are memory-bandwidth-bound workloads that scale directly with DDR5's throughput advantages.
• Cloud Service Provider Infrastructure: Hyperscale and regional cloud providers deploying multi-tenant compute nodes need the combination of high density, ECC reliability, and power efficiency that this Samsung DDR5 RDIMM provides.
• Enterprise Edge & Telco NFV: Network Functions Virtualisation (NFV) nodes deployed at the edge of telecom networks require compact, high-performance memory to run virtualised network functions with deterministic latency.

Why Buy from Omnixon

Omnixon Global is a trusted B2B IT hardware distributor headquartered in Dubai, UAE, serving enterprise clients across the GCC, wider MENA region, and internationally. When you source the Samsung M321R6GA0PB2-CCP through Omnixon, you benefit from locally held inventory in Dubai, enabling rapid fulfilment for projects across the United Arab Emirates, Saudi Arabia, Qatar, Kuwait, Bahrain, Oman, and beyond. Our procurement team works directly with authorised supply chains to ensure that every unit shipped is genuine, brand new, and free from grey-market risk — critical for enterprise customers with strict compliance and audit requirements. Omnixon's technical sales specialists understand server memory architecture and can assist with compatibility verification, configuration planning, and volume procurement for large-scale deployments. As a regionally focused distributor with global reach, we bridge the gap between international hardware supply and the specific needs of enterprise IT buyers in the GCC market.

Related Products & Ecosystem

To build a complete and optimised server memory infrastructure, consider complementing this Samsung DDR5 RDIMM with related products available through Omnixon Global. Pair these modules with compatible next-generation servers from Dell, HPE, Lenovo, or Supermicro available in our Servers category. For storage performance to match your memory throughput, explore our Enterprise SSDs range featuring NVMe U.2 and E1.S drives. If you are expanding your compute cluster, our CPUs category includes Intel Xeon and AMD EPYC processors validated for DDR5 platforms. Our Memory (RAM) category also carries complementary DDR5 LRDIMM options for platforms requiring even higher per-slot density, as well as DDR4 RDIMMs for legacy server refresh projects. Network Adapters & NICs, high-speed Transceivers & Cables, and Network Switches round out the infrastructure stack, ensuring your memory-rich servers are connected to a fabric that can deliver data at the speeds DDR5 enables.